Switch for sparking devices.



.P. J. MARRINGTON. swrran FOR SPARKINQ DEVICES. APPLICATION FILED L'IAR. 6,1909. 1,009, 162. Patented Nov. 21, 1911.

v 2 SHEBTSSHEET 1.

P. J. MARRINGTON. SWITCH FOR SPARKING DEVICES. APPLIQATION FILED MAR.6.1909.

Patented Nov. '21, 1911.

2SHEBTS-SHEET 2.

Invcnir RANK J. MARRINGTON, OE FORT DC JDGE, IOWA.

' swrrcn non sranxrne DEVICES.

Specification of Letters Patent. Patented Na f. 21,

Application filed March. 6, 1309. Serial No. 481,745.

To all whom it may concern:

Be it known that I, FRANK J. Mainline tron, a citizen of the United. States, residing "four contact pieces 16 of such size and shape that when'the bladeslQ have their adjacent an ,ends inclined downwardly, the contact pieces 16 and form angelefctrical ,at Fort Dodge, in the county of Webster and Stateoi Iowa, have invented a. certain new and useful Switch for Sparking De;

vices, of which the following is a specificar'" tion.

The object of my a switch of simple, constructionespecially designed for use in connection with the sparking devices of en plosive engines, whereby a single sparking plugmay be used ineach cylinder of the engine andcurrent delivered to each plug either by means .a battery; and, further, to provide. a switch of thisiiind in which to normal positionto prevent sparking by and at the same time the magneto generator may be operated andthe current produced thereby will be shortcircuited. I

My invention consists in the construction,

parts of the device whereby the objects confully setforth, pointed out in my claims, and illustrated in the accompanying drawings, in whichei Figure 1. shows a p spective view of a switch-embodying my invention, also the sparking plugs of four engine cylinders, the i'nagneto generator and the battery,and the other devices arranged in the circuits for producing sparks at the proper time. Fig. 2 shows a topor plan view oi the switch detached. Fig. 3 shows ,a side elevation of the switch detached, and Fig. i shows sectional view on the line el of Fig. Referring to the accompanying drawings, I have used the reference numeral 10 toindicate the base of the switch. Arranged at the longitudinal center or" the switch are five contact pieces indicated by the numeral 11. To four of these contact pieces, I have pivoted a switch blade 1.2, and to the other, a short switch. blade 13. These blades are all connected by means of a top piece lt made of insulating material and provided with. a handle 15. are in their normal or disconnected position, as shown. in Fig! 1, the under surface of each blade inclinesupwardly and outwardly away 55 from the base" 10 in invention is to provide durable and inexpens ve I of a magneto generator or" the switch may be set.

either the magneto generator or thebattery arrangement and combination of the various When the switch blades provid d at its top ing' portion 20 through-which the bolt 21': i

second contact piece l3, which contact I it willengage and form an electricalfc small end ot the switch blade 13 is tilted downwardly toward the contact piece in Fig.

both directions, except nary.

for the blade 13 which extends direction from the center. i v Arranged at one side of the base l0 are only in one they'willrest in connection therewith, .Adjacent'tothe contact pieces 16 is another contact piecd'ITZ to i receive the adjacent' end of the Switchblade s5. 13. Adjacent to the contact'pieceifl t 18 for the -switch blade piece is so. arranged th nectionwith theijjswi-tch blade. 13 when t base 10; and also when it is in a substantially horizontal-posi tion, asshown in Fig). 1, but said switch v blade 13 will be out of engagement with'the it? .18 when the pointed end of the switch blade 13 is elevated" to its upper limitrf' 0n the oppositeside of the base lO'are' four contact pieces 1'9: to receive the-ends of the 1 switch bl'ades'12 when they are tilted down: at wardly-tow'ardthe contact pieces 19. p

In Fig; 3' of the drawings; I ,have shown ,:.the means by which the;switch blades are each blade being connected withthe part 14, I

laterally extend- .85

with a is passed, said bolt being also extended through the part '14. In Fig. i; of the'drawings,l have shown the switch, by solid lines, in its normal'posi so tion, and by dotted lines, tilted to bothl rnits of its movement. f

' li henthe switch is in the position shdwn 3.,1the switch blade 13 establishes electrical" connection between the contact as piece to which it. is pivoted and .the 0011-. tact piece i ilier: the switch blades are tilt d t limitv oftheir movement, the

" i "contact between the iiadeid will form we 1:,17 andl8;f o its oppo 12 will to Fi hare used the reference nuin cate the en ine cvlind' of wt shown in sent instance. the cylinders is asparking pi 23 are, i construction. 'lhess'; ran?! spines w l a the lid trically connected by primary coil 33 and is electrically wires are also breaker is operated a current the sparking circuit will 55 generators in .60 'nected to the brush 4O plugs are connected by the wiresja with the 5 the engine cylinder.

I employ two independent electric circuits for the purpose of producing sparks by means of the same sparking plugs. The firsttcircuit comprises a battery 26 electhe wire 27 with the Contact piece 17. The battery 26 is also connected with a circuit breaker 28 by means i The circuit breaker in turnof the wire 29. is connected by means of a wire 30 with the 31 of an induction coil of ordinary construction. This primary coil is electrically connected by the wire 32 with the engine cylinder. A secondary coil of the induction coil is indicated by the numeral connected by a wire 34 with the engine cylinder, and is also connected by a wire 35 with a distributer 36 of ordinary construction. This distributor has four wires 37 connected with it, which connected with the contact pieces 16.

Assuming that the switch blades 12 are in position in engagement with the contact pieces 16, then each time that the circuit will be passed from the battery through the circuit breaker to the induction coil and from the secondary coil of the induction coil to the distribute'r, and by the distributer it will be delivered 35 to the contact pieces 16 and from there will fiow through the blades 12 to the contact pieces 11, and from them to the sparking plugs, and inasmuch as both coils of. the induction coil are connected to the engine cylinder,

be thereby completed. Furthermore, the battery is also connected by means of the wire 27 with the contact piece 17 and as this contact piece will 'be in engagement with the blade 13 and as said blade is connected by the wire 25 with the engine cylinder, the circuit will thereby be completed.

I employ the same sparking plugs and switch to operate in connection with the magneto generator which is diagrammati-' cally illustrated in Fig. l and indicated by the numeral 38. The generator shown is of the kind now in general use for automobile ignition and belongs to that type of which the armature has a low tension and a high tension winding. One end of each winding is grounded on the frame and the other ends are "rranged as follows: The low tension win ing is conand the high tension winding to the brush 39. The circuit breaker 2 is connected to the engine. cylinlder by means of a wire 43. The brush 39 5 connected with the distributer 44; by means of the wire 45 and the said distributer has four wires 46 connected with it which lead to the tour contact pieces 19 of the switch. The magneto generator is connected by means of a wire 47 with the wire :25 and the brush 40 of the magneto generator is connected by means d a wire -18 with the contact piecc18.

The operation of the device, when work ing on the magneto generator, is as follows: Assuming the switch to be in the position shown in Fig. 1, then only a low tension cir cuit will be produced by the generator and this current will be short circuited without passing through the circuit breaker, for thc current will flow from the brush 40 through thewire $8 to the contact piece 18 and through the switch blade piece 11 and from thence through the wires 25 and 47 back to the generator frame. When however the switch is set to position with the blades 12 in-engagement with the contact pieces 19, then the short circuit through the contact pieces 18, before de scribed, will be broken and the low tension circuit 'from the brush 40 will flow to the circuit breaker over the wire 41 and when the circuit breaker is in its closed position, as shown in Fig. l, the current will flow through the wire 43, through the engine frame and return over the wire 47 to the generator. \Vhen however the circuit breaker is in its open osition a high tension current will be ind uced in the genera.- tor and will flow through the brush 39 through the wire 4,3 to the distributor an from thence through the wires. 46 to the cons tact piec=s 19, then through the switch blades, the contact pieces 11, and from them through the wires 24, the spark lugs, and from the engine frame through tlie wire 47 back to the generator.

I claim as my invention:

1. A switch for sparking purposes comprising a base, a blade movable on the base, two electric contact devices fixed tothe base at opposite ends of the blade, and so arranged that the blade, when in one position,

' engagement with both of said.

13, the contact will be out of electric contact devices, and when in other positions, in engagement with either one of said electric contact devices, a second blade operatively connected with the first to move contact with its blade when the first mentioned blade is in a neutral position, and also whenthe first blade is moved to position in engagement with one of its electric contact devices, and the other electric contact device for the second blade being ar-' ranged in position to engage the second blade only when the first mentioned blade is in the last mentioned positions fpr thc purposes stated. 4

of blades pivoted to said supports, means for connecting them so that they may he moved in un1son,t\vo Contact devices tor one 0t said blades, here nafter referred to as the short blade, arranged on the same side of the pivotal center, the one nearest the center being materially longer than the other so that a contact with said short blade will remain unbroken when the blade is moved out of engagementgrith the other one of said contact devices, the other blades of the series being extended in opposite directions from the pivotal center, and a serles of contact devices fixed to the base, one at each end of each blade so arranged that when the switch is in neutral position all of the blades will be out of engagement with their respective contact devices except the said long contact device, and when the switch is moved to one limit of its movement both of the contact devices for said short blade Will be in engagement therewith and the adjacent ends.

of the other blades of the series will be in engagement with the contact devices on one side of the base, and when the switch is tilted to its other limit of movement, the opposite ends of the long blades will be in engagement with the other ones ofthe contact devices, and both of the contact devices for the shortblade will be out of engagement with it, substantially as and for the purposes stated.

Des Moines, Iowa, Feb. 15, 1909.

FRANK J. MARRINGTON.

\Vitnesses J. G. STAFFORD, S. H. lon'rz. 

